Regenerative coke oven



Nov. 6, 1928.

,690, 05 G. o. WOLTERS REGENERATIVE com: OVEN Filed Sept. 10, 1926 3Sheets-Sheet 1 lnreni'ar 0, Wailers Nov. 6, 1928. 1,690,805

- e. o. WOLTERS REGENERATIVE COKE OVEN Filed Sept. 10, 1926 3Sheets-Sheet 2.

[12 V8]: for

6f Waliens Nov. 6, 1928. 1,690,805

G. O. WOLTERS REGENERATIVE COKE OVEN Filed Sept. 10, 1926 3 Sheets-Sheet3 [n renfor w .0.W0 fer; 3y

Fwy.

Patented Nov. 6, 1928 UNITED STATES,

1,690,805 PATENT OFF-ICE.

imam? o'r'ro WOLTERS, or VILLIGS'T, NEAR scnwna'rn. GER-MANY.

Application filed September 10, 1926', Ser.ia1

My invention relates to improvements in coke ovens, and moreparticularly in ovens of the class in which the coking chambers arecomparatively high and the air for supporting combustion is supplied atdifferent points of the length of the heating passages. The object ofthe improvements isto'provide an oven of this type in which the mainportion of. the air for supporting combustion ispreheatwithintheregenerators and delivered into the heating passages ofthe oven at the-inlet end thereof, the direction of the flow of the aircoming from the regenerators being changed whenever the flow of theheating gases to the heating passages is reversed, while additional airis supplied to a'median part or median parts of the heating passages.

. This additional air is preheated in separate chambers infwhich thedirection of its flow remains the same even'whenreversing the'flow.

' of the gases through the heating passages, the

said additional air being preferably conduct-- ed through passages orpipes or chambers provided in the walls of the regenerators or withinthe regenerators themselves, where it is heated at high temperature."Thus, the said passages or pipes or chambers work in the same way asrecuperators. By heating the coke oven, the heat is uniformly distrib- Tsages.

uted all over the length of the heating pas- For the'purpos'e ofexplaining the invention two examples embodying the same have been shownin the accompanying drawings, in which the same reference charactershave been-used in all the views to indicate corre- :sponding parts.

In said drawings, 1

Fig. 1, is a partial sectional elevation showing the coke oven and theregenerators,

'Fig. 2, is a sectional elevation taken on the line 2-2 of Fig. I, v n

vFig. 3, is a sectional elevation similar to the one shown in Fig. 1 andillustrating a modification, Y

s Fig. 4, .is a sectional elevation line 4-4 of Fig. 3, and

Fig. 5, is a sectional plan' view taken on the line 5-5 of Fig. 4;

p In the embodimentof the invention shown in Figures 1 and 2 the'cokeoven is constructed'of brickwork and comprises coking chambershorizontally elongated and having heating chambers F at opposite sidesthereof, said coking and heating chambers being arranged in the upperportion ofthe brickwork taken on the" REGENERATIvE COKE oven.

with the separating or intermediate walls common to both chambers. Theheating chambers. are divided into alternate pairs of fiues f and f byvertical partitions 7c, is ex-. 00 tending transversely of and upwardfrom the bottom of the heating chambers to adjacent the top thereof withthe fines in communication with each other over the tops of the par-vtitions. Regenerators 9,9 are arranged below the coking chambers inparallel relation thereto and each other, saidregenerators havingconnection through passages i, i with passages h,h which latter passagesare adapted for connection with asource of air supply for supporting andstimulating combustion in the heating chambers, or to means forexhausting the products of combustion from the regenerators' Topass'preheated'air to th'e'lower portions of the fluesf, f of the.heating chambers from the regenerator's g, g7 and for conducting theburned gasesv orthe products of combustion from said chambers to. theregeneratorspassages b, b" are provided to connect the regeneratorswith. the flues, thefpassages b communicating with the regenerators gand the dues f while the pas sages b communicate with the regenerators gand-flues f. Passages j, j leading from a source of gas supply arearranged in the wall of the oven in interposed relation to the heatingchambers and regenerators and have burners a, a connected theretoopening into the respective flues f, f of the heating chambers- Cokingovens constructed in accordance with the foregoing descriptionrand theoperation thereof are well known to those skilled in the art. v

The partition walls k alternating with the partition walls 70, andseparating the heating chambers'into fines are arranged with passages 0extending longitudinally therethrough, and said passages leading throughthepartition walls 0 of the regenerators from 'chambersmextendingthrough the walls of 100 the regenerators and parallel thereto.The passages a open into the upper portion of the heating chambers Fthrough the tops or the sides adjacent the tops ofthe partitions. Thechambers m communicate with an air supply 105 and the air as it passestherethrough andthe passages 0 is preheated before it BIItGI'S IIItO theheating chambers by the heat transmitted through the Walls of theregenerators. p i

In. the operation of the oven air'and, gas 110 are supplied, forinstance, through the pas sages Z) from the regeneratorsg and burners a;p

to the bottom portion of the fines f of the heat ing chambers, the airmixing with and serving as a stimulant and aid to the combustion'of thegas, and the burning mixture rising in said chambers and passing overthe tops of the partitions 7c and descending into the fines andexhausted through the passa es b to the regenerators g, which at thetime areserving as exhaust fines for the products of combustion,whichare exhaustedthrough the pas-- sages 2", it connected with saidregenerators g, thedirection of flow of the gases and the exhaust of theproducts of combustion being that indicated by the arrows. Asthe gasesin the fines freachthe upper endsof theflues additional air is suppliedtoithe partly burnt gases through the aassages o to serve as :astimulant to the burning gas and assuring complete combustion ofthesame. The air admitted through the passages it is previously heatedin the passage through thesregeneratorsg, and theadditional or secondaryair deliveredthroughthe passages c is preheated by the heattransmittedthrough the walls of theregenerators. As Is usual in coking ovens ofthis character, after the regenerators g have'been in operation for acertainperiod-of time the regenerators g are utilized as regene'ratorsand the regeneratorsg as exhaust pas sages forthe products ofcombustion. fWhen the direction of flow of the burning gases through thefines 7", 7 isrreversed primary combustio is taking place in the lines 7by bustion are supplied to a series of adjacent verticalpassages orflues f in theheating chambar and deliv red from said series of fines toa successive series of adprcentpassages or-flues F, the heating chamberbeing above and parallel with the two generators g g "'hich are As shownthe arranged in endwise rel ion, passages a and b openinto a series :ofad jacent vertical passages or lines 7, while the passages a and b openinto a successive series of adjacent flues F. The passagesb communicatewith the regenerators g and the passages b with the regeneratorsOtherwise the construction of the oven is similar to that describedwith. reference to 1 and 2. In the operation of the oven is supplied tothe heating passages or fines f of the heating chamber through thepassages (6 whilst air for supporting combustion of said is suppliedthrough the regenerators g and the passages 6 In ascending within theheating'passages or fiues f the is partly burnt. The partly burnt fuelreceives an additional supply of air through the passages c, whereuponcombustion is completed within the passages f in which the gasesdescend, the

'direetionof flow of the gases and of the pri- 'tion is completed withinthe passages F. In

this instance the burnt gases are used for heating the regenerators 9 Itwill beunderstood that any suitable number ofadjacent passages f and imay be combined in the nanner indicated, and that my invention is notlimited to the construction shown in:Figs. 3 to 5 in which the heatingchambers are each divided intotwo sets of heating "passages f and 7. Insome cases I combine all the passages ofthe heating chambers,the'airascending in all of said passages and descendin in the passagesof the adjacentheating cham er.

When using poor gas I provide regenerators for air and gas, and in thecase, instead of supplying additional air I can supply additional poorgas preheated in recu erators similar to those used for preheating t i'eadditional air.

I, claim: v i

1. In a coke oven, a horizontally elongated coking chamber, heatingchambers juxtaposed to the opposite sides of the coking chamber arrangedwith partitions extending transversely to said coking chamber andiupward from the bottom to adjacentthe topof each of the heatingchambers separating each of said chambers into flues communicating witheach other at the topsof the partitions, regenerators arranged below andparallel to the coking chamber, fuel inlets to the bottoms of the fines,primary air passages connecting the regenerators with the bottoms of theflues for supplying air from said regenera-torsfto the heatingchambers'for supporting combustion of fuel therein and arranged withmeans for controlling flow of air 'throughthe regenerators to theheating chambers and flow of products of combustion fromthe heatingchambers through said passages, and *secondary air inlet passagesconnected with a source ofair' supply and extending vertically throughthe walls between the regenerators and through alternate partitions in.each of the heating chambers and having outlets from the tops of saidalternate partitions'into the heating chambers for deliveringa'secondary air supply to the heating chambers at a point remote fromthe bottoms of said flues.

2. A coke oven as claimed in claim ,1, wherein two regenerators arearranged end to end below the coking chamber, :the successive series offines in one half of one of said heating chambers being in communicationwith one regenerator, and the series of successive flues in the otherhalf of the same heating chamber communicating with another regenerator.

In testimony whereof I have affixed my signature.

GUSTAV OTTO WOLTERS.

